EXPLORER 1

Satellite information

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Satellite Type and Status

PAYLOADDECAYED

Key statistics

Satellite EXPLORER 1 at a glance.

Uptime

4441

Days in orbit

Revolutions

N/A

Per day

Orbit

LEO

Low Earth Orbit

Inclination

N/A

Latest

Satellite identification and parameters

Extended collection of information and parameters for EXPLORER 1.

Object identification

Object name: EXPLORER 1

International designator: 1958-001A

Object number (NORAD): 4

Object ID (CCSDS): 4

Country: UNITED STATES OF AMERICA (US)

Current information (Y/N): Y

Orbital parameters

Decay date: March 31, 1970

Inclination: 33.15 deg

Period: 88.48 minutes

Apoapsis: 215.0 km

Periapsis: 183.0 km

Two-line elements (TLE)

No TLE available, as this satellite has decayed and is no longer in orbit.

Live tracking on map

Satellite EXPLORER 1 has decayed and is no longer in orbit. No tracking available.

Associated space launch

First successfully launched American satellite. It was the first spacecraft to detect the Van Allen Radiation Belt.

EXPLORER 1 was lifted into orbit during the mission ‘Juno-I | Explorer 1’, on board a Juno-I space rocket.

The launch took place on Feb. 1, 1958, 3:47 a.m. from Launch Complex 26A.

For more information about the launch, click the button.

Launch to space Juno-I | Explorer 1
Juno-I | Explorer 1

Agency: N/A

Status: Launch Successful

Launch date: Feb. 1, 1958, 3:47 a.m. UTC

Rocket: Juno-I

Launch pad: Launch Complex 26A

Location: Cape Canaveral SFS, FL, USA

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